Q. What are the uses of metal balls?

Answer

Switches, Electrical contacts, microelectronic interconnects, and battery safety releases all use balls formed of electrically conductive metals like copper, gold, brass, and silver. Electrical and electronic applications benefit from the use of dielectric balls. Balls such as trunnion, stem, segment, three-way, four-way,  two-piece balls, and poly or multiple-way are all used in valve applications such as check valves and ball valves. To ensure a tight seal between the valve ball and seat, its sphericity must be carefully managed within acceptable tolerances. Additionally, they may feature a stem, thread hole, or slot. A more consistent flow may be achieved between the open and closed positions thanks to the through-hole.